Improvement in stretcher-frames for pictures



A. STEMPEL.

Stretcher-Frames for Pictures. N0l50,98.2, Patented May/19,1874.

ATTEST:

UNITED STATES PATENT OFFICE.

ADOLPH STEMPEL, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN STRETCHER-FRAMES FOR PICTURES.

Specification forming part of Letters Patent No. 150,982, dated May 19, 1874 application filed November 24, 1873. V

To all who-m it may concern:

Be it known that I, ADoLrn STEMPEL, of Chicago, in the county of Cook and State of Illinois, have invented an Improvement in Stretcher-Frames, of which the following is a specification The nature of this invention relates to an improvement in the manufacture of stretcherframes, such as are used for mounting pietures, lithographs, and show-cards. Heretoi'ore it has been the custom to join the ends and sides of said frames, by forming a tongue or tenon on the end of piece and inserting it in a slot or mortise in the other, and securing the joint hypins or glue, or both, making such joints very weak by cutting away so much of the material. The object of this invention is to so form the joints at the corners of the stretehers as to give them much greater strength than could he secured in the ordinary way, while the cost of manufacture is also lessened.

Figure lis a perspective view of my improved stretcher. Fig. 2 is a similar view of one of the pieces, showing the manner of shaping the ends to form a joint.

`surfaces will be iiush, as seen in Fig. l, while it is also evident that such a joint will cost less than a mortise and tenon, and it will be much stronger.

What I claim as my invention, and desire to secure by Letters Patent, is-

As a new article of manufacture, a stretcherframe composed of slats or bars A, having their ends cut to the sloping bevels d, to form the corner-joints, substantially as described.

ADOLPI-I STEMPEL.

Witnesses:

WM. H. LOT?, H. Biscnorr.

A similar bevel face is out 

